For Japanese episodes, this distinction is made instead of seasons (although there are other subdivisions, such as Episode Orange Islands and Best Wishes! Season 2). In the dub, this distinction was not properly made until Pokémon the Series: XY, which introduced a name for the series, being followed by some older series retroactively receiving similar names in home video box sets and video-on-demand releases (such as iTunes and Netflix). With the exception of Pokémon: Advanced (only when using standard season divisions), dub seasons never contain episodes from more than one series, being cut off at series divisions.